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Eaton HND312T57W - Molded Case Breaker 1200A 600V

Cutler Hammer
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Eaton HND312T57W is a 3-pole, 1200A molded case circuit breaker from the Series C family, designed to provide LSIGA protection (Long-Time, Short-Time, Instantaneous, and Ground Fault Alarm) for industrial power distribution systems. It operates at a voltage rating of 600V and a current rating of 1200A, with a solid-state trip unit and an AIC rating of 65kA at 480V. The breaker features a bolt-on connection, an N Frame size, and measures 5.5 in x 8.25 in x 8.25 in (Length/Depth x Height x Width), weighing 44 lb. It is built for 3-phase applications, complying with industry standards for reliable overcurrent and ground fault protection. Typical uses include main or feeder protection in commercial and industrial switchboards, panelboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Solid State Trip
  • Voltage Rating: 600V
  • Current Rating: 1200A
  • Dimensions: 5.5 in x 8.25 in x 8.25 in (Length/Depth x Height x Width)
  • Standards: UL, CSA, NEMA
  • Applications: Industrial power distribution, main or feeder protection
  • Switch Type: Circuit Breaker
  • Configuration: 3-Pole
  • Coil Voltage Maximum: Not applicable
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: 3
  • Voltage: 600V
  • Amperage: 1200A
  • AIC rating: 65kA@480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: LSIGA (Long-Time, Short-Time, Instantaneous, Ground Fault Alarm)
  • Functions: LSIGA
  • Frame Size: N Frame
  • Trip Type: Solid State
  • Panel Type: Not specified
  • Breaker Type: HND
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-On
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 1200A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: Not specified
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Not specified
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: N Frame
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: N Frame
  • Current Rating: 1200A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: Not specified
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 782114408742
  • GTIN: 00782114408742